Civitai
Civitai is the largest open community for Stable Diffusion, SDXL, Flux, and video AI models — hosting over a million model checkpoints, LoRAs, embeddings, and VAEs uploaded and rated by creators. Beyond hosting, Civitai operates a hosted AI image, video, audio, and language generation service through its Orchestration API, which races workflows across providers (Flux 1/2, SDXL, SD1, Z-Image, Qwen, Seedream, Grok, WAN 2.1-2.7, Kling, LTX2, Vidu, Veo 3, HunyuanVideo) and supports LoRA training jobs. The Site API exposes the public catalog plus user vault, permissions, and AIR identifier resolution. OAuth 2.0 with PKCE and per-app Buzz spend caps lets third parties build delegated experiences without owning a user's full credit balance. Generation is metered in Buzz, a virtual credit topped up via memberships or one-off packs.
Civitai publishes 11 APIs on the APIs.io network, including Blobs API, Creators API, Enums API, and 8 more. Tagged areas include Artificial Intelligence, Image-Generation, Video Generation, Stable Diffusion, and SDXL.
The Civitai catalog on APIs.io includes 1 JSON-LD context and 2 Spectral governance rulesets.
Civitai’s developer surface includes authentication, developer portal, documentation, getting-started guide, signup flow, support, engineering blog, and 45 more developer resources.
Kin Score
APIs 12
Individual APIs this provider publishes, each with its own machine-readable definition.
Civitai OAuth API
OAuth 2.0 authorization-code with PKCE for third-party apps that act on behalf of a Civitai user. Supports scoped tokens, refresh flow, and per-app Buzz spend caps so a delegate...
Civitai Blobs API
Upload and reference blobs for inputs and outputs.
Civitai Creators API
Users who publish models.
Civitai Enums API
Enumerations used throughout the API.
Civitai Images API
Community-shared generation outputs.
Civitai Models API
Catalog of model checkpoints, LoRAs, embeddings, and VAEs.
Civitai ModelVersions API
Specific versions of a model with files, hashes, and AIR identifiers.
Civitai Permissions API
Permission checks for the current bearer.
Civitai Tags API
Catalog tag taxonomy.
Civitai Users API
User accounts.
Civitai Vault API
A user's saved-model vault (membership tiers).
Civitai Workflows API
Submit and manage generation workflows.
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Postman Collections 2
Ready-to-run Postman collections for exercising this provider's APIs.
Civitai Orchestration API
POSTMANCivitai Site API
POSTMANOpen Collections 14
Open, tool-agnostic API collections (OpenAPI-derived and Bruno).
API Collection
OPEN COLLECTIONCivitai Orchestration Blobs API
OPEN COLLECTIONCivitai Orchestration Blobs Creators API
OPEN COLLECTIONCivitai Orchestration Blobs Enums API
OPEN COLLECTIONCivitai Orchestration Blobs Images API
OPEN COLLECTIONCivitai Orchestration Blobs Models API
OPEN COLLECTIONCivitai Orchestration Blobs ModelVersions API
OPEN COLLECTIONCivitai Orchestration API
OPEN COLLECTIONCivitai Orchestration Blobs Permissions API
OPEN COLLECTIONCivitai Site API
OPEN COLLECTIONCivitai Orchestration Blobs Tags API
OPEN COLLECTIONCivitai Orchestration Blobs Users API
OPEN COLLECTIONCivitai Orchestration Blobs Vault API
OPEN COLLECTIONCivitai Orchestration Blobs Workflows API
OPEN COLLECTIONScroll for all 14
Arazzo Workflows 13
Multi-step API workflows described with the Arazzo specification.
Civitai Batch Hash Reconciliation
Resolve many file hashes to version ids in bulk, then enrich the first match with model detail.
ARAZZOCivitai Blob Upload and Image-to-Image Generation
Upload a source image blob, run an img2img workflow against it, poll, and read the result.
ARAZZOCivitai Creator Models and Image Gallery
Find a creator, list the models they publish, and pull a gallery of images for one model.
ARAZZOCivitai Image Generation Submit and Poll
Submit an image generation workflow, poll until it finishes, and collect the output blobs.
ARAZZOCivitai Model Images Explorer
Open a model, browse its community images, and resolve the version behind the top image.
ARAZZOCivitai Identify a Model From a File Hash
Resolve a local model file's hash to its model version, then load the parent model.
ARAZZOCivitai Generate From a Catalog Model Version
Resolve a catalog model version's AIR, generate an image with it, poll, and read the result.
ARAZZOCivitai Permission-Gated Version Download
Resolve a model version, check the bearer's permissions, and branch on download rights.
ARAZZOCivitai Presigned Blob Upload Then Generate
Request a presigned blob upload URL, reference the blob in a workflow with webhook callbacks, and poll.
ARAZZOCivitai Search Models and Drill Into a Version
Search the model catalog, open the top matching model, and resolve one of its versions.
ARAZZOCivitai Tag-Driven Model Discovery
Pick a tag from the taxonomy, list models carrying that tag, and open the top model.
ARAZZOCivitai Vault Add and Verify
Confirm the user, check vault capacity, add a model version to the vault, and verify storage.
ARAZZOCivitai Query and Cancel a Running Workflow
List active workflows, inspect the first one, cancel it, and confirm the canceled state.
ARAZZOScroll for all 13
MCP Servers 1
Model Context Protocol servers that expose these APIs to AI agents.
Civitai MCP Server
MCP SERVERPricing Plans 1
Published pricing tiers and plan structures.
Rate Limits 1
Documented rate limits and quota policies.
Civitai Rate Limits
RATE LIMITSFinOps 1
Cost, billing, and metering signals for API financial operations.
Civitai Finops
FINOPSFeatures 18
Notable capabilities this provider offers.
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Semantic Vocabularies 1
JSON-LD contexts and semantic vocabularies used across these APIs.
Civitai Context
JSON-LDSpectral Rules 2
Spectral governance rulesets for linting and validating these APIs.
Civitai API Rules
SPECTRALCivitai API Rules
SPECTRALJSON Schema 3
Standalone JSON Schema definitions for this provider's data models.
JSON Structure 1
JSON Structure definitions describing this provider's data shapes.
Civitai Model Structure
JSON STRUCTUREExamples 2
Example request and response payloads for these APIs.
Security Posture 3
Authentication, domain security, vulnerability disclosure, and trust-center signals.
Agentic Access 1
Recommended x-agentic-access execution contracts for AI agents.
Resources
Get Started 3
Portal, sign-up, and the first successful call
Documentation 5
Reference material describing how the API behaves
Agent Surfaces 2
MCP servers, agent skills, and machine-readable catalogs
Design & Contract 15
Pagination, idempotency, versioning, errors, and events
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Build 11
SDKs, sample code, and the tooling you integrate with
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Access & Security 4
Authentication, authorization, and security posture
Operate 3
Status, limits, changes, and where to get help
Commercial 4
Pricing, plans, and the legal terms of use
Company 4
The organization behind the API
Other 1
Properties that don't map to a standard resource type
Source (apis.yml)
Work with this as data
Every provider here is available over the APIs.io API and to AI agents over MCP.